Ceramic composition having dispersion of nano-particles therein and methods of fabricating same
First Claim
1. A method of applying a light-conversion layer to a surface of a light-emitting diode (LED), the method comprising:
- applying a mixture of quantum dots and discrete ceramic precursor molecules to the surface of the LED, wherein the quantum dots are hetero-structure quantum dots having an outer insulator coating already formed thereon prior to forming the mixture, wherein the outer insulator coating comprises a layer of material selected from the group consisting of silica (SiOx), titanium oxide (TiOx), zirconium oxide (ZrOx), alumina (AlOx), and hafnia (HfOx), and wherein the discrete ceramic precursor molecules are thermal or ultra-violet (UV) labile polysilsequioxane molecules having one or more β
-electron withdrawing groups; and
subsequent to applying the mixture of quantum dots and discrete ceramic precursor molecules to the surface of the LED, forming, from the mixture, a ceramic matrix on the surface of the LED, the ceramic matrix comprising a dispersion of the quantum dots therein, wherein forming the ceramic matrix comprises forming a silica-rich or silicate matrix via heating or UV-light exposure.
4 Assignments
0 Petitions
Accused Products
Abstract
Ceramic compositions having a dispersion of nano-particles therein and methods of fabricating ceramic compositions having a dispersion of nano-particles therein are described. In an example, a method of forming a composition having a dispersion of nano-particles therein includes forming a mixture of semiconductor nano-particles and ceramic precursor molecules. A ceramic matrix is formed from the ceramic precursor molecules. The ceramic matrix includes a dispersion of the semiconductor nano-particles therein. In another example, a composition includes a medium including ceramic precursor molecules. The medium is a liquid or gel at 25 degrees Celsius. A plurality of semiconductor nano-particles is suspended in the medium.
-
Citations
15 Claims
-
1. A method of applying a light-conversion layer to a surface of a light-emitting diode (LED), the method comprising:
-
applying a mixture of quantum dots and discrete ceramic precursor molecules to the surface of the LED, wherein the quantum dots are hetero-structure quantum dots having an outer insulator coating already formed thereon prior to forming the mixture, wherein the outer insulator coating comprises a layer of material selected from the group consisting of silica (SiOx), titanium oxide (TiOx), zirconium oxide (ZrOx), alumina (AlOx), and hafnia (HfOx), and wherein the discrete ceramic precursor molecules are thermal or ultra-violet (UV) labile polysilsequioxane molecules having one or more β
-electron withdrawing groups; andsubsequent to applying the mixture of quantum dots and discrete ceramic precursor molecules to the surface of the LED, forming, from the mixture, a ceramic matrix on the surface of the LED, the ceramic matrix comprising a dispersion of the quantum dots therein, wherein forming the ceramic matrix comprises forming a silica-rich or silicate matrix via heating or UV-light exposure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
Specification